EP1174177A3 - Spiral wound membrane element, spiral wound membrane module and treatment system employing the same as well as running method and washing method therefor - Google Patents

Spiral wound membrane element, spiral wound membrane module and treatment system employing the same as well as running method and washing method therefor Download PDF

Info

Publication number
EP1174177A3
EP1174177A3 EP01306085A EP01306085A EP1174177A3 EP 1174177 A3 EP1174177 A3 EP 1174177A3 EP 01306085 A EP01306085 A EP 01306085A EP 01306085 A EP01306085 A EP 01306085A EP 1174177 A3 EP1174177 A3 EP 1174177A3
Authority
EP
European Patent Office
Prior art keywords
spiral wound
wound membrane
filtration
treatment system
running
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01306085A
Other languages
German (de)
French (fr)
Other versions
EP1174177A2 (en
Inventor
Masaaki Ando
Satoru Ishihara
Katsumi Ishii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2000217940A priority Critical patent/JP4583558B2/en
Priority to JP2000217941 priority
Priority to JP2000217941A priority patent/JP2002028456A/en
Priority to JP2000217939 priority
Priority to JP2000217940 priority
Priority to JP2000217939A priority patent/JP4583557B2/en
Application filed by Nitto Denko Corp filed Critical Nitto Denko Corp
Publication of EP1174177A2 publication Critical patent/EP1174177A2/en
Publication of EP1174177A3 publication Critical patent/EP1174177A3/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/142Ultrafiltration; Microfiltration comprising multiple ultrafiltration or microfiltration steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/145Ultrafiltration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis, ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/16Feed pretreatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10Spiral-wound membrane modules
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D63/00Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10Spiral-wound membrane modules
    • B01D63/12Spiral-wound membrane modules comprising multiple spiral-wound assemblies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • B01D65/022Membrane sterilisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane formation
    • B01D67/0009Organic membrane formation by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011Casting solutions therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10Supported membranes; Membrane supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/66Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68Polysulfones; Polyethersulfones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2311/00Details relating to membrane separation process operations and control
    • B01D2311/04Specific process operations in the feed stream; Feed pretreatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04Backflushing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16Use of chemical agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/28By soaking or impregnating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/24Mechanical properties, e.g. strength

Abstract

A spiral wound membrane module (100) comprises a spiral wound membrane element (1) including a separation membrane having high back pressure strength. In filtration running, raw water introduced from a raw water inlet (13) of a pressure vessel (10) is subjected to dead end filtration, and permeate is taken out from a permeate outlet (14). In washing, wash water containing a chemical having a contaminant separating function is introduced from an end of a water collection pipe (5) through the permeate outlet (14) for performing back wash reverse filtration with a back pressure of 0.05 to 0.3MPa. The filtration running is temporarily stopped for maintaining the pressure vessel in a state sealed with the raw water and the permeate for a prescribed time. Thus, contaminants adhering to the membrane surface of the spiral wound membrane element (1) are separated. A treatment system is formed by connecting units comprising spiral wound membrane modules (100) in parallel with each other. In the treatment system, one of the units is subjected to filtration running when another one of the units is washed. In washing, back wash reverse filtration and chemical soaking are performed.
EP01306085A 2000-07-18 2001-07-16 Spiral wound membrane element, spiral wound membrane module and treatment system employing the same as well as running method and washing method therefor Withdrawn EP1174177A3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2000217941 2000-07-18
JP2000217941A JP2002028456A (en) 2000-07-18 2000-07-18 Treatment system using spiral membrane module and operating method therefor
JP2000217939 2000-07-18
JP2000217940 2000-07-18
JP2000217939A JP4583557B2 (en) 2000-07-18 2000-07-18 Operation method and a cleaning method of the spiral wound membrane element and the spiral wound membrane module
JP2000217940A JP4583558B2 (en) 2000-07-18 2000-07-18 The method of operating a spiral type membrane element and the spiral wound membrane module

Publications (2)

Publication Number Publication Date
EP1174177A2 EP1174177A2 (en) 2002-01-23
EP1174177A3 true EP1174177A3 (en) 2002-12-04

Family

ID=27344102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01306085A Withdrawn EP1174177A3 (en) 2000-07-18 2001-07-16 Spiral wound membrane element, spiral wound membrane module and treatment system employing the same as well as running method and washing method therefor

Country Status (2)

Country Link
US (1) US6733675B2 (en)
EP (1) EP1174177A3 (en)

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US6878294B2 (en) * 2000-07-06 2005-04-12 Nitto Denko Corporation Running method and treatment system for spiral wound membrane element and spiral wound membrane module
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AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
JP2003181247A (en) * 2001-12-17 2003-07-02 Nitto Denko Corp Treatment system having spiral membrane element and its operating method
US20050067341A1 (en) * 2003-09-25 2005-03-31 Green Dennis H. Continuous production membrane water treatment plant and method for operating same
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US7192528B2 (en) 2004-02-17 2007-03-20 Jnm Technologies, Inc. Self-cleaning filter apparatus
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NZ553742A (en) 2004-09-14 2010-09-30 Siemens Water Tech Corp Methods and apparatus for removing solids from a membrane module
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US7279100B2 (en) * 2005-01-31 2007-10-09 Ashbrook Simon-Hartley Operations, Lp Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane
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US9302920B1 (en) * 2006-03-28 2016-04-05 Pentair Residential Filtration, Llc Integrated controller and method for a water filtration system
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US20170035950A1 (en) * 2006-10-09 2017-02-09 Minnetronix, Inc. Tangential flow filter system for the filtration of materials from biologic fluids
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US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
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CN101966428B (en) * 2010-11-04 2016-02-03 贵阳时代沃顿科技有限公司 Spiral wound membrane element
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EP3473320A1 (en) 2011-09-30 2019-04-24 Evoqua Water Technologies LLC Isolation valve
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Also Published As

Publication number Publication date
EP1174177A2 (en) 2002-01-23
US20020027111A1 (en) 2002-03-07
US6733675B2 (en) 2004-05-11

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